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Physical Layout
13
Lion (VL-EPMe-42) Reference Manual
VL-CBR-4005 Connector Functions
Table 2. VL-CBR-4005 Functions
Reference
Function
PCB Connector
Description
B1
Provides power to CMOS RAM and
RTC registers when main power is
off.
–—
Back-up battery
J1
Paddleboard adapter
Molex 501571-4007
1 mm, 40-pin
keyed header
J2
Auxiliary I/O (I
2
C, GPIO, Ethernet
LED, LED power)
FCI 98414-F06-20ULF
2 mm, 20-pin
keyed header
J3
USB1 (top), USB2 (bottom)
USB Type A
USB Host
J4
USB3 (top), USB4 (bottom)
USB Type A
USB Host
D1
Programmable LED (top)
Power LED (bottom)
LED
–—
S1
Power button
Pushbutton
–—
S2
Reset button
Pushbutton
–—
SP1
Speaker
Piezo speaker
–—
User I/O Connector
The 40-pin J13 I/O connector incorporates the signals for the following:
Four USB ports
Eight GPIO lines
Three LEDs (two Ethernet link status LEDs and a programmable LED)
I
2
C clock and data signals
Push-button power switch
Push-button reset switch
Speaker output
This connector uses IEC 61000-4-2-rated TVS components to help protect against ESD damage.
Table 3 provides the pinout of the user I/O connector.